AD8307ARZ-REEL

Overview

The AD8307ARZ-REEL is a low-cost, DC to 500 MHz logarithmic amplifier manufactured by Analog Devices Inc. It provides a dynamic range of 92 dB with ±1 dB linearity up to 100 MHz and operates on a single supply voltage ranging from 2.7 V to 5.5 V. The device features a typical supply current of 7.5 mA and includes an enable interface for standby operation at 150 μA. It utilizes a fully differential DC-coupled signal path and offers a slope of 25 mV/dB.

Feature Summary

• Complete multistage demodulating logarithmic amplifier based on progressive compression technique
• Fully differential DC-coupled signal path ensuring high stability over temperature
• CMOS-compatible chip enable pin for rapid power-down to low standby current
• Internal offset compensation loop for automatic input nulling

Applications

• Conversion of signal level to decibel form
• Transmitter antenna power measurement
• Receiver signal strength indication (RSSI)
• Low cost radar and sonar signal processing
• Network and spectrum analyzers

Procurement Notes

Verify the specific REEL suffix against the manufacturer's ordering guide to confirm packaging format and quantity. Ensure the component meets RoHS compliance requirements for your assembly process. Cross-reference the datasheet revision F specifications with your design constraints regarding operating temperature and supply voltage limits before finalizing procurement.

Selection Notes

Select this component when a wide dynamic range and high-frequency operation up to 500 MHz are required in a compact SOIC package. Consider the internal offset correction and adjustable intercept features if precise calibration without external trimming is necessary. Evaluate the single-supply requirement and low quiescent current suitability for battery-operated or portable instrumentation designs.

Part Context

The AD8307 series represents a family of monolithic demodulating logarithmic amplifiers designed for RF and IF signal processing. The AD8307ARZ variant specifically denotes the industrial temperature grade (-40°C to +85°C) housed in an 8-lead SOIC_N package. This part serves as a foundational building block for analog signal measurement systems requiring direct decibel output conversion.

Replacement Considerations

The AD8310 is listed as a next-generation upgrade offering faster response time and buffered output. For applications requiring higher frequency operation up to 4 GHz, the ADL5513 may be considered despite higher power consumption. The AD8309 provides a higher input range with limiter output characteristics.